La maladie de Parkinson au Canada (serveur d'exploration)

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Estrogen and SERM neuroprotection in animal models of Parkinson's disease.

Identifieur interne : 000F57 ( PubMed/Corpus ); précédent : 000F56; suivant : 000F58

Estrogen and SERM neuroprotection in animal models of Parkinson's disease.

Auteurs : Marc Morissette ; Sara Al Sweidi ; Sophie Callier ; Thérèse Di Paolo

Source :

RBID : pubmed:18515001

English descriptors

Abstract

A higher prevalence and incidence of Parkinson disease (PD) is observed in men and beneficial motor effects of estrogens are observed in parkinsonian women. Lesion of the dopamine (DA) nigrostriatal pathway in animals with 1-methyl 4-phenyl-1,2,3,6 tetrahydropyridine (MPTP) provides a model of PD and this is based on its use in humans as side-product of a drug abuse. Presently treatment of PD is mainly symptomatic. The MPTP mouse is used to study the neuroprotective roles of estrogenic drugs on the DA system. Estrogens, but not androgens, are active neuroprotectants as well as progesterone and dehydroepiandrosterone. An estrogen receptor agonist PPT and the selective estrogen receptor modulator raloxifene are also neuroprotective. Striatal DA neurons of estrogen receptor alpha knockout mice are more susceptible to MPTP toxicity than wild-type mice and neuroprotection by estradiol is associated with the activation of the PI3-K pathway involving Akt, GSK3beta, Bcl2 and BAD.

DOI: 10.1016/j.mce.2008.04.008
PubMed: 18515001

Links to Exploration step

pubmed:18515001

Le document en format XML

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